Browsing NIVA Open Access Archive by Author "Schneider, Susanne Claudia"

Now showing items 1-20 of 37

    • Annual changes in aquatic plant photosynthesis in the regulated river Otra and the effect of plant removal 

      Demars, Benoît Olivier Laurent; Schneider, Susanne Claudia; Thiemer, Kirstine; Dörsch, Peter; Pulg, Ulrich; Stranzl, Sebastian Franz; Velle, Gaute; Pathak, Devanshi (NIVA-rapport;7858-2023, Research report, 2023)
      Mass development of submerged aquatic plants is often seen as nuisance for human activities. The present study used novel methods to estimate the changes in ecosystem photosynthesis (mostly Juncus bulbosus), through an ...

    • Biodiversity patterns of Arctic diatom assemblages in lakes and streams: Current reference conditions and historical context for biomonitoring 

      Kahlert, Maria; Ruhland, Kathleen M; Lavoie, Isabelle; Keck, Francois; Saulnier-Talbot, Emilie; Bogan, Daniel; Brua, Robert B; Campeau, Stephane; Christoffersen, Kirsten Seestern; Culp, Joseph M; Karjalainen, Satu Maaria; Lento, Jennifer; Schneider, Susanne Claudia; Shaftel, Rebecca; Smol, John P. (Peer reviewed; Journal article, 2020)
      1.Comprehensive assessments of contemporary diatom distributions across the Arctic remain scarce. Furthermore, studies tracking species compositional differences across space and time, as well as diatom responses to climate ...

    • Changes in the diatom community in the great lake (Lurë National Park, Albania) from 2005 to 2017 and first steps towards assessment the water quality 

      Vidaković, Danijela; Krizmanić, Jelena; Ndoj, Eriselda; Miho, Aleko; Kupe, Lirika; Schneider, Susanne Claudia (Peer reviewed; Journal article, 2020)
      Great Lake is the largest of 14 lakes situated in Lurë National Park, in the eastern part of the Lurë Mountains, Albania. To characterize lake ecological status, epiphytic and epilithic diatom samples were collected from ...

    • Co-occurrence, ecological profiles and geographical distribution based on unique molecular identifiers of the common freshwater diatoms Fragilaria and Ulnaria 

      Kahlert, Maria; Maaria Karjalainen, Satu; Keck, Francois; Kelly, Martyn; Ramon, Mathieu; Rimet, Frederic; Schneider, Susanne Claudia; Tapolczai, Kálmán; Zimmermann, Jonas (Peer reviewed; Journal article, 2022)
      Diatom taxonomy has evolved in recent years, with many new species described and new approaches such as molecular genetics showing the existence of cryptic diversity within currently accepted species. This cryptic diversity ...

    • DNA barcoding the genus Chara: Molecular evidence recovers fewer taxa than the classical morphological approach 

      Schneider, Susanne Claudia; Rodrigues, Anuar; Moe, Therese Fosholt; Ballot, Andreas (Journal article; Peer reviewed, 2015)
      Charophytes (Charales) are benthic algae with a complex morphology. They are vulnerable to ecosystem changes, such as eutrophication, and are red‐listed in many countries. Accurate identification of Chara species is critical ...

    • Do benthic algae provide important information over and above that provided by macrophytes and phytoplankton in lake status assessment? – Results from a case study in Norway 

      Schneider, Susanne Claudia; Hjermann, Dag Øystein; Edvardsen, Hanne (Journal article; Peer reviewed, 2019)
      To test if phytobenthic algae provide additional important information to macrophytes and phytoplankton for lake monitoring, we sampled two large lakes in Norway. In each lake, we analyzed water chemistry and phytoplankton ...

    • Drivers of Perceived Nuisance Growth by Aquatic Plants 

      Thiemer, Kirstine; Immerzeel, Bart; Schneider, Susanne Claudia; Sebola, Keneilwe; Coetzee, Julie; Baldo, Mathieu; Thiébaut, Gabrielle; Hilt, Sabine; Köhler, Jan; Harpenslager, Sarah Faye; Vermaat, Jan (Peer reviewed; Journal article, 2023)
      Mass developments of macrophytes occur frequently worldwide and are often considered a nuisance when interfering with human activities. It is crucial to understand the drivers of this perception if we are to develop effective ...

    • Ecological correlates of riverine diatom and macroinvertebrate alpha and beta diversity across Arctic Fennoscandia. 

      Brittain, John Edward; Heino, Jani; Friberg, Nikolai; Aroviita, J.; Kahlert, M.; Karjalainen, S-M.; Keck, F.; Lento, J.; Liljaniemi, P.; Mykrä, H.; Schneider, Susanne Claudia; Ylikörkko, J. (Peer reviewed; Journal article, 2020)
      Arctic freshwaters support biota adapted to the harsh conditions at these latitudes, but the climate is changing rapidly and so are the underlying environmental filters. Currently, we have limited understanding of broad-scale ...

    • Ecological status assessment of clay rivers with naturally enhanced water phosphorus concentrations 

      Schneider, Susanne Claudia; Skarbøvik, Eva (Peer reviewed; Journal article, 2022)
      The species composition of benthic algae changes as water phosphorus concentrations increase, and these changes can be used for ecological status assessment according to the Water Framework Directive. Natural background ...

    • Eutrophication impacts littoral biota in Lake Ohrid while water phosphorus concentrations are low 

      Schneider, Susanne Claudia; Cara, Magdalena; Eriksen, Tor Erik; Goreska, Biljana Budzakoska; Imeri, Alma; Kupe, Lirika; Lokoska, Tatjana; Patceva, Suzana; Trajanovska, Sonja; Trajanovski, Sasho; Talevska, Marina; Sarafiloska, Elizabeta Veljanoska (Journal article; Peer reviewed, 2014)
      Eutrophication has traditionally been measured as increased phosphorus concentrations. In some lakes, however, such as transboundary Lake Ohrid situated between Macedonia and Albania, pelagic phosphorus concentrations are ...

    • Forslag til forvaltningsrelevante marine naturenheter 

      Bekkby, Trine; Rinde, Eli; Oug, Eivind; Buhl-Mortensen, Pål; Thormar, Jonas; Dolan, Margaret; Mjelde, Marit; Gitmark, Janne Kim; Moy, Siri Røang; Schneider, Susanne Claudia; Gonzales-Mirelis, Genoveva; Systad, Geir Helge Rødli; van Son, Thijs Christiaan (NIVA-rapport;7672, Research report, 2021)
      Regjeringen ønsker å prioritere kartlegging av naturtyper som enten er truet, viktige for mange arter, dekker sentrale økosystemfunksjoner, eller er spesielt dårlig kartlagt. En marin faggruppe ble nedsatt for å operasjonalisere ...

    • Forslag til variabler for økologisk kvalitet for lokaliteter av forvaltningsrelevant marin natur 

      Bekkby, Trine; Rinde, Eli; Kvile, Kristina Øie; Brkljacic, Marijana Stenrud; Thormar, Jonas; Mjelde, Marit; Gitmark, Janne Kim; Moy, Siri Røang; Schneider, Susanne Claudia; Oug, Eivind (NIVA-rapport;7797-2022, Research report, 2022)
      Denne rapporten diskuterer og komme med forslag variabler for å fastsette økologisk kvalitet for de marine naturtypene og naturenhetene presentert i Bekkby m.fl. (2021). Alternative variabler, standardiserte kriterier og ...

    • Genetic and morphological variation in Chara contraria and a taxon morphologically resembling Chara connivens 

      Trbojević, Ivana; Marković, Aleksandra; Blaženčić, Jelena; Subakov Simić, Gordana; Nowak, Petra; Ballot, Andreas; Schneider, Susanne Claudia (Peer reviewed; Journal article, 2020)
      Charophyte species delineation is regularly based on a set of thallus morphological characteristics, but considering pronounced phenotypic plasticity, difficulties and doubts commonly occur in Chara species determination. ...

    • Gjenvekst av krypsiv etter tiltak, og effekter av kalking på krypsiv i Otra ved Rysstad 

      Schneider, Susanne Claudia; Andersen, Eivind Ekholt; Mutinova, Petra Thea (NIVA-rapport;7733-2022, Research report, 2022)
      Otra ved Rysstad har i lang tid hatt utfordringer med massevekst av krypsiv. Mekanisk fjerning av krypsiv i utvalgte områder der plantene er til særlig sjenanse for fiske og bading blir sett på som det mest praktiske ...

    • Gjenvekst av krypsiv etter tiltak, og effekter av kalking på krypsiv i Otra ved Rysstad – oppdatert status 2022 

      Schneider, Susanne Claudia; Andersen, Eivind Ekholt; Mutinova, Petra Thea; Thiemer, Kirstine (NIVA-rapport;7849-2023, Research report, 2023)
      Otra ved Rysstad har i lang tid hatt utfordringer med massevekst av krypsiv. Mekanisk fjerning av krypsiv i utvalgte områder der plantene er til særlig sjenanse for fiske og bading blir sett på som det mest praktiske ...

    • Greener rivers in a changing climate?—Effects of climate and hydrological regime on benthic algal assemblages in pristine streams 

      Schneider, Susanne Claudia (Journal article; Peer reviewed, 2015)
      Excessive biomass development of benthic algae is often considered undesirable, but understanding the causes is confounded by complex interactions among driving factors. Pristine rivers allow a benchmark where human ...

    • How Characean algae take up needed and excrete unwanted ions – An overview explaining how insights from electrophysiology are useful to understand the ecology of aquatic macrophytes 

      Beilby, Mary J.; Bisson, Mary A.; Schneider, Susanne Claudia (Peer reviewed; Journal article, 2022)
      Characean algae have been a model plant for electrophysiology for many decades, due to the large size of the internodal cells and their robust recovery from invasive manipulation. The information gained from them has ...

    • Hydropower: gas supersaturation and the role of aquatic plant photosynthesis for fish health 

      Demars, Benoît Olivier Laurent; Dörsch, Peter; Thiemer, Kirstine; Clayer, Francois; Schneider, Susanne Claudia; Stranzl, Sebastian Franz; Pulg, Ulrich; Velle, Gaute (NIVA-rapport;7633, Research report, 2021)
      Fish and invertebrates breathing in water supersaturated with gas (total dissolved gas; TDG), e.g. at the outlet of hydropower plants, may develop gas bubble disease (analogous to the bends in humans). Aquatic plants also ...

    • Impacts of multiple stressors on freshwater biota across spatial scales and ecosystems 

      Birk, Sebastian; Chapman, Daniel; Carvalho, Laurence; Spears, Bryan M.; Andersen, Hans Estrup; Argillier, Christine; Auer, Stefan; Baattrup-Pedersen, Annette; Banin, Lindsay; Beklioğlu, Meryem; Bondar-Kunze, Elisabeth; Borja, Angel; Branco, Paulo; Bucak, Tuba; Buijse, Anthonie D.; Cardoso, Ana Cristina; Couture, Raoul-Marie; Cremona, Fabien; de Zwart, Dick; Feld, Christian K.; Ferreira, M Teresa; Feuchtmayr, Heidrun; Gessner, Mark O.; Gieswein, Alexander; Globevnik, Lidija; Graeber, Daniel; Graf, Wolfram; Gutiérrez-Cánovas, Cayetano; Hanganu, Jenica; Işkın, Uğur; Jarvinen, Marko; Jeppesen, Erik; Kotamäki, Niina; Kuijper, Marijn; Lemm, Jan U; Lu, Shenglan; Solheim, Anne Lyche; Mischke, Ute; Moe, S. Jannicke; Nõges, Peeter; Nõges, Tiina; Ormerod, Steve J; Panagopoulos, Yiannis; Phillips, Geoff; Posthuma, Leo; Pouso, Sarai; Prudhomme, Christel; Rankinen, Katri; Rasmussen, Jes Jessen; Richardson, Jessica; Sagouis, Alban; Santos, Jose Maria; Schäfer, Ralf B; Schinegger, Rafaela; Schmutz, Stefan; Schneider, Susanne Claudia; Schülting, Lisa; Segurado, Pedro; Stefanidis, Kostas; Sures, Bernd; Thackeray, Stephen J.; Turunen, Jarno; Uyarra, María C.; Venohr, Markus; von der Ohe, Peter Carsten; Willby, Nigel; Hering, Daniel (Peer reviewed; Journal article, 2020)
      Climate and land-use change drive a suite of stressors that shape ecosystems and interact to yield complex ecological responses (that is, additive, antagonistic and synergistic effects). We know little about the spatial ...

    • Interactions between pH and nutrients on benthic algae in streams and consequences for ecological status assessment and species richness patterns 

      Schneider, Susanne Claudia; Kahlert, Maria; Kelly, Martyn G. (Journal article; Peer reviewed, 2013)
      Eutrophication and acidification are among the major stressors on freshwater ecosystems in northern Europe and North America, but possible consequences of interactions between pH and nutrients on ecological status assessment ...